This video blew my mind -- you literally explain perfectly how 3 subjects (Controls, DSP, Signals) come together and interact with each other in the best way possible, I'd learnt these various techniques DAC, ADC ZOH n all but seeing them come together is one of those lightbulb moments!! THANK YOU really for making such amazing videos!! If it were up to me, I would pay you my 3 professor's salaries lolxx!
Mr. Douglas, thank you! I think your lectures are very useful, but I am Chinese, my English is not very well , so usually it's hard for me to learn, but I always give you thumbs up! lol.
I can not thank you enough for these videos. I am learning about discrete and continuous systems but i did not know why they were relevant. Thank you so much!
I never understood the real meaning of the quote "Information is the new gold" until I found Brian's channel ... The information he's throwing at us is pure gold ... He can explain what my professors and the whole world failed to explain in 4 college years in 20 minutes ! God bless you man
Just wanted to come by and say thank you for doing these! I think in specific discrete control systems arent covered enough and I feel like everyone could learn a little more about them because nobody in my EE department seems to know a lot about them! They just do the fast sampling approach and thats it.
O! Brian some body teach one person, and another one teach more person in collage and university but you learn us all of world, that inside college and on the job. Thank you too much
I was sad to find out you didn't cover state space control theory, so I really missed you these last 6 weeks. Im glad now my course started with discrete control and you can help me yet again!
@@BrianBDouglasWhoa.. You're doing people all around the world a solid. My college professor actually recommended us to watch your videos before reading the course material. I'll be sure to check all those videos once im done!
@@BrianBDouglas my professor too recommended your videos i think you are the best when it comes to explaining complexe topics and thank you so much for sharing this for free
I did not learn control theory in College, and I did not learn it on the job. I faked it, and made top $ for engineers as I designed switching power supplies for 30 years. I did learn lingo to get the work. If someone asked me about continuous flyback I would say, "Right half plane zero in the S plane. Must roll off control gain below LR pole corner." But once I was there I would not waste time designing or camped out with the schlumberger phase gain analyzer. I would hook up variable capacitors and resistors around the error amplifier, give a 100% step load to the system, and dial the compensation until it was critically damped.
Hello Mr. Douglas. Control systems and signal processing, two of my favorite subjects, had so long eluded me. Thanks for these brilliant videos on control systems. Hope to see more of these videos. 😁
Hey Brian, love watching your control system videos. The videos you've posted so far are very clear, easy to understand and professional. I actually have a final coming up on Aug 17th on discreet control systems so I'll be excited to see the upcoming series of videos. Lastly, thanks taking the time create these fantastic videos
You all probably dont give a damn but does anyone know of a method to get back into an Instagram account?? I was dumb lost my account password. I would love any tricks you can offer me
@Guillermo Jesse I really appreciate your reply. I found the site on google and Im waiting for the hacking stuff now. Takes quite some time so I will reply here later with my results.
You can also use a Smith predictor in discrete time in order to find a controller that will stabilize your plant given a controller that will stabilize your plant without delay. I think you could also use a Smith predictor in continuous time, however this might be ever harder to solve by a computer (because delayed differential equation are infinite dimensional).
Hi I am trying to understand just a couple of things: 1) the original pt open loop transfer function 1/(1+0.2s) is very close to the transfer function being just 1. Is this delibaretly? If so why would this be a good example of a transfer function to show the effects of designing a controller on? 2) At 2:54: Are the two so similar because the answer to 1) is yes, it was delibaretly? 3) 3:10: First order open loop == infinite phase margin? Why is that (maybe my knowledge of transfer functions needs refreshing, but it does not seem to be directly clear to me) Thank you so much for your amazing videos:)
Hi Brian! Your videos are amazing! I was wondering if you could suggest any good video or other source in which the override control strategy is explained well! Thank you in advance!
Your lectures are great. I shared Bode plots with my daughter teaching an electronics class at UMASS . Would you tell me what device you use for the blackboard? Thanks Jim Pauley.
Thank you for the amazing video, but when I calculated the steady state error for ramp input for a type zero transfer function i found it zero, can you tell me how you got this result by hand ?
@@Fihaa111 YES! That's why is so weird Douglas using the ramp response on the open loop plant and subtracting the standard ramp as refference signal and finding 20%. It is like you are analyzing the plant before closing the loop. Being a type 0 system it is clear that the final value would be infinite in closed loop. The interesting part is that if you apply the final value theorem on the error modelled in open loop you find the 20%, and in closed loop you find infinite. My model of the error in open loop is R(s)*(1 - G(S)), and the closed loop error model is (1/(1 + G(s))*R(s), being G the plant and R the reffence. The funny part is that my closed loop error is just like the one in textbooks like Ogata, and the authors don't even metion errors in open loop. P.S.: Sorry for the grammar errors, english is not my first language.
Hello. Thank you very much for great videos. It would be great if you can make videos on system identification with a real motor or something, using Matlab toolboxes. I thank you again for awesome videos!
Hi thanks for your video. Can i ask a question please! Do you think that i need to watch the videos of classical control (continuous systems) before Discrete control.
Hello, I wanted to tune a discrete PID controller using GA, how can I do that? Can anyone please help me , by sharing the code or what to write in the code (i work in the z domaine "discrete pid ")
18:50 But the ZOH method is not to convert continuous to discrete. As you have mentioned in 12:04 it is used to convert back discrete to continuous. Could you explain please?
![เจ็บที่ยังฮัก - ม่อน วรวิทย์ [ Official Mv ] จอนนี่มิวสิค](http://i.ytimg.com/vi/KALIGSRSjFs/mqdefault.jpg)
Just coming back to say your videos are still the best for learning control system theory. Bar none! Thank you for everything you do Mr. Douglas!
I'm an aerospace engineering student and these videos are gold, better than classes at univs.
Amazing how you start first with intuitive explanations. Really helps on sinking in the concepts
This video blew my mind -- you literally explain perfectly how 3 subjects (Controls, DSP, Signals) come together and interact with each other in the best way possible, I'd learnt these various techniques DAC, ADC ZOH n all but seeing them come together is one of those lightbulb moments!! THANK YOU really for making such amazing videos!! If it were up to me, I would pay you my 3 professor's salaries lolxx!
15:45 That analogy you made is just wow!
Mr. Douglas, thank you! I think your lectures are very useful, but I am Chinese, my English is not very well , so usually it's hard for me to learn, but I always give you thumbs up! lol.
I can not thank you enough for these videos. I am learning about discrete and continuous systems but i did not know why they were relevant. Thank you so much!
One of the best videos on control systems I have watched! - A stanford engineering student studying E205
I never understood the real meaning of the quote "Information is the new gold" until I found Brian's channel ... The information he's throwing at us is pure gold ... He can explain what my professors and the whole world failed to explain in 4 college years in 20 minutes ! God bless you man
I come to your videos for all my controls courses, thank you so much you're a great teacher.
Just wanted to come by and say thank you for doing these! I think in specific discrete control systems arent covered enough and I feel like everyone could learn a little more about them because nobody in my EE department seems to know a lot about them! They just do the fast sampling approach and thats it.
Wow that Javascript game part was awesome. Your method of teaching is commendable!
O! Brian some body teach one person, and another one teach more person in collage and university but you learn us all of world, that inside college and on the job. Thank you too much
I was sad to find out you didn't cover state space control theory, so I really missed you these last 6 weeks. Im glad now my course started with discrete control and you can help me yet again!
Oh man I do cover some state space! Lately, I've only been making videos for Mathworks and you can find them all here: engineeringmedia.com/videos
@@BrianBDouglasWhoa.. You're doing people all around the world a solid. My college professor actually recommended us to watch your videos before reading the course material. I'll be sure to check all those videos once im done!
@@Joaking91 Awesome!
@@BrianBDouglas my professor too recommended your videos i think you are the best when it comes to explaining complexe topics and thank you so much for sharing this for free
I did not learn control theory in College, and I did not learn it on the job. I faked it, and made top $ for engineers as I designed switching power supplies for 30 years. I did learn lingo to get the work. If someone asked me about continuous flyback I would say, "Right half plane zero in the S plane. Must roll off control gain below LR pole corner." But once I was there I would not waste time designing or camped out with the schlumberger phase gain analyzer. I would hook up variable capacitors and resistors around the error amplifier, give a 100% step load to the system, and dial the compensation until it was critically damped.
If only I had found your channel earlier, before those exams on control theory :D
You make the most informative and intuitive videos on youtube. Thanks a lot
Hello Mr. Douglas. Control systems and signal processing, two of my favorite subjects, had so long eluded me. Thanks for these brilliant videos on control systems. Hope to see more of these videos. 😁
your lectures are definitely the best out there, please make a state space lectures. thank you so much for everything!
Congrats, dear Brian ...
thank you, I was tired and frustrated, you are the ligth in my control course hehe
This is a good introduction material to the topic.
This is so much better than our "motivated" Professor tried to explain
I’m getting sick of doing expensive courses on this stuff and then I learn better on TH-cam videos because of poor effort professors
Wow, this is gold Brian, thank you!
HE'S BACK! :D
Hey Brian, love watching your control system videos. The videos you've posted so far are very clear, easy to understand and professional. I actually have a final coming up on Aug 17th on discreet control systems so I'll be excited to see the upcoming series of videos. Lastly, thanks taking the time create these fantastic videos
You all probably dont give a damn but does anyone know of a method to get back into an Instagram account??
I was dumb lost my account password. I would love any tricks you can offer me
@Jameson Jaden instablaster =)
@Guillermo Jesse I really appreciate your reply. I found the site on google and Im waiting for the hacking stuff now.
Takes quite some time so I will reply here later with my results.
@Guillermo Jesse It worked and I finally got access to my account again. I am so happy!
Thanks so much you saved my account !
@Jameson Jaden glad I could help :)
Great approach to the subject. You are awesome. I wish you the best.
Nice to see you after long time. Great!
Welcome back Brian☺
Yes! Discrete control is so interesting.
Thank you very much! This video helped me lots to understand why to use discrete control.
Thank you very much Brian!
It would be great if you do the same series of videos with discrete systems. Its like the second part of control in every college
Perfect video! Brian is the best... Perhaps it is not a bad idea to put all the videos regarding discreet control into single playlistl
this is great! Im just starting a discrete control systems course! I hope you can release the videos fast. Thanks
thank you,对于我的专业学习非常有用!!!
You can also use a Smith predictor in discrete time in order to find a controller that will stabilize your plant given a controller that will stabilize your plant without delay. I think you could also use a Smith predictor in continuous time, however this might be ever harder to solve by a computer (because delayed differential equation are infinite dimensional).
Better than my professor.
Great video-presentation!! TY so much
Hi, can you make a space state video? Just explaining how it work and how to do the math. Thanks!
I 'am with
You can check out control boot camp with Steve brunton for a focus on state space and mimo control
Really amazing!
Thanks, this was very helpful !!
Amazing lecture, man!
Great content as always. Thanks for doing the video.
damn you created a game just for this video!!!
such perfect timing for reexams lmao
Great explanation...
Nice work!
You are legend
it is a very nice video. it is really helpful . I would like if you make some videos on how to implement control algorithm in Arduino.
Hello, Thank you for such informative sessions. Can you explain 'Gain Scheduler for Nonlinear systems' in next session?
very well explained and i teach this
Hi I am trying to understand just a couple of things:
1) the original pt open loop transfer function 1/(1+0.2s) is very close to the transfer function being just 1. Is this delibaretly? If so why would this be a good example of a transfer function to show the effects of designing a controller on?
2) At 2:54: Are the two so similar because the answer to 1) is yes, it was delibaretly?
3) 3:10: First order open loop == infinite phase margin? Why is that (maybe my knowledge of transfer functions needs refreshing, but it does not seem to be directly clear to me)
Thank you so much for your amazing videos:)
Hi Brian! Your videos are amazing! I was wondering if you could suggest any good video or other source in which the override control strategy is explained well!
Thank you in advance!
Thanks for great videos.
feeling like a rocket scientist watching this (>^________^
Your lectures are great. I shared Bode plots with my daughter teaching an electronics class at UMASS . Would you tell me what device you use for the blackboard? Thanks Jim Pauley.
Thanks, Jim! I've written up my whole process here - at least briefly :) engineeringmedia.com/my-setup
Thank you for the amazing video, but when I calculated the steady state error for ramp input for a type zero transfer function i found it zero, can you tell me how you got this result by hand ?
And I found the SSE to be infinite of a type zero system for a ramp input
I found the mistake, the error is not the same for open and closed loop systems.
@@engenhologia isn’t the SST error normally calculated for the closed loop system?
@@Fihaa111 YES! That's why is so weird Douglas using the ramp response on the open loop plant and subtracting the standard ramp as refference signal and finding 20%. It is like you are analyzing the plant before closing the loop. Being a type 0 system it is clear that the final value would be infinite in closed loop. The interesting part is that if you apply the final value theorem on the error modelled in open loop you find the 20%, and in closed loop you find infinite. My model of the error in open loop is R(s)*(1 - G(S)), and the closed loop error model is (1/(1 + G(s))*R(s), being G the plant and R the reffence. The funny part is that my closed loop error is just like the one in textbooks like Ogata, and the authors don't even metion errors in open loop.
P.S.: Sorry for the grammar errors, english is not my first language.
非常感謝你!!!!
please upload some more videos on discrete control system ...
you are the best
Hello. Thank you very much for great videos. It would be great if you can make videos on system identification with a real motor or something, using Matlab toolboxes. I thank you again for awesome videos!
awesome!
Thank you
Really good, Thank's
Awesome
Please , Can you make a video on how to calculate the steady state error of a non - unity feedback system?
thumbs up, thums up, thumbs up !
big fan of you
Beautiful
have you done videos about stability of discrete systems?
Hi, very good videos :-D I just wonder what program you are making your presentations in?
Why does sampling create delay at higher frequencies? 19:15
Can anyone explain? '
so helpful
DSP video playlist ... Thank you
Amazing!!!!!
Can we use the Discrete Fourier Transform for tuning controlers in the z domain?
I tried to do the same model but the bode icon can't detect the the In1 and Out1 blocks
Hi thanks for your video. Can i ask a question please! Do you think that i need to watch the videos of classical control (continuous systems) before Discrete control.
Hi, Could you please explain why we get dip in phase plot as shown @19:16 and increases later on?
thanks
Hello, I wanted to tune a discrete PID controller using GA, how can I do that? Can anyone please help me , by sharing the code or what to write in the code (i work in the z domaine "discrete pid ")
Hi, Is it possible to do system identification for a real non-linear plant with a large delay in the measurements?
18:50 But the ZOH method is not to convert continuous to discrete. As you have mentioned in 12:04 it is used to convert back discrete to continuous. Could you explain please?
Great!
great!!
yeay!
Bro the presentation was making sense, but there is a ton of information in 22 min video.
Cadê o pessoal da UnB?
When are you uploading broh
i love you
Man, the sound in this video is very poor :( I had to turn up the volume to 100 and it's still hard to hear...
Great video-presentation!!! TY so much